From Greek: para allelois beside one another. Lines are parallel if they lie in the same plane, and are the same distance apart over their entire length. Try this Drag any orange dot at the points P or Q. As the line PQ moves, the line RS will remain parallel to it. Parallel lines remain the same distance apart over their entire length.
It is important to know whether the cancer has got into the lymph glands because they are one of the main mechanisms by which the cancer can spread to other parts of the body. As long as the spread is just to the lymph glands near to the colon then this would indicate Stage 3 cancer.
If cancer cells are found in the lymph nodes, treatment such as chemotherapy may be suggested. This is because if a primary cancer has spread to the nearby lymph nodes, it increases the risk that the cancer may have spread to other parts of the body (even if those nodes have been removed).owever, if there are only a small number of cancer cells in the lymph nodes, they may feel normal. It's only possible to tell whether a cancer is present by removing part or all of the lymph node and examining the cells in a laboratory.